Loose-leaf binder



-W. J. McCARTHY.

LOOSE LEAF BINDER.

APPLICATION FILED MAR. 22. 1919.

Patented Mar. 9,1920.

2 SHEETS-SHEET l.

w. J. McCARTHY.

' Patented Mar. 9,1920.

LOOSE LEAF BINDER.

APPLICATION .HLED MAR. 22. l9l9.

2 SHEETS-SHEET 2- WILLIAM JOHN McCARTHY,OF or'rnwa, onranro, cannon.

LOOSE-LEAF nnv'nnia.

Specifieationof Letters Patent: Patt /Rhea Bil 513 9., iiigilg Application fi ea nain 22, 1919'. Serial is. 28 4,2351

. ToaZZ whom it may cancer Be it known that I, WiLLiAM Joi-In Mo- GARTHY, a subject of" the King of Great Britaimand resident of the city of Ottawa,

in the Province of Ontario, Dominion of- Canada, have invented certain new .andusefu'l Improvements in Loose-Leaf Binders,

. of which the following is a specification."

This invention'relates to improvements in loose leaf blnders, and the ob ects of the invention are to provide a simple and effective 1 form ofblnder in which the bindlng mem bers may be readily released from binding,

but maybe kept locked in position.

Further objects are to provide a uniform .inovement between the two bindingmemhere during the opening of thebinder; and

7 generally to improve'and simplify the construction'of the device and enable the various parts to better perform the functions required of them. It consists essentially of p the improved construction hereinafter de- V ating plate.

binding members.

, A'and B, the said covers not beingfhow scribed in detail-in the accompanying specification and drawings.

In the drawings Figure 1 is afperspective view'jofjthe binder. a Fig. 2 is'a front elevation of the binding elements closed. 7 a p Fig. 8 is a perspective view of the oper- Fig. 4 is a front elevation of the binding elements open. 7 Y

Fig.5 is a cross sectional view. 7.

Fig. 6fis a perspective view of one of the Fig. 7 is a cross sectional view line X--X of Fig. .5.

' In the drawings like characters of reference indicate corresponding parts in all the figures. I

, Referring to the drawings, A and Brep-j resent the two binding elements movable to and from each other and usually forming part of a loose leaf book, the covers of which book will be attached to the elements ever, shown in the drawings; C'repres ents through inclined slots 12 in the controlling {the back plate forming the back of the '50 book and also constituting a support for certain'of. the working parts as hereinafter described. I

Each of the binding elements and are formedwith a plurality of projecting arms 10 which carry studs 11"which extend on the or operating v plate D, which plate is provided witha series of slots 12, oppositelyinclined and arranged in staggered rows, the

studs 11 being foiined'with their heads pro ecting overthe ed e of the slots whereby when the plateD is inovedlongl p I udin-ally' the inclined slots. 00111111L1I11Cat111 liiOtlOIl through the studs 11 will cause the binding members to bemovedoutwardly or inwardly,

or conversely when the binding members are moved inwardly or outwardly the plate D will he moved longitudinally. r v Vleans areprovided for locking the plate D in any longitudinal position, and means 2,

are shown for this comprising a spring dog 14- mounted on a bracket 15 at one end of theplate l) and adapted to engage a ratchet I Q 16 formed on. OllQSlClGOf a rod. 17 extending longitudinally on the back plate C and sup;v

.7.5 ported'thereo'n, with freedom to turn half" a revolution at leasty the/rod as illustrated being supported from suitable braclr-ts 18 i and 19 and also receiving some support from a depending ing 20 on the plate The turning movements of the rod-17 is so I limitedby means of projecting pins Zion V It will be seen that movement of the binding members will be prevented so long as the dog 14 is not released from the ratchet 16 and it is necessary that the rod 17 should be turned before this release takes place, and I preferably provide a suitable form'of swivel lock E at the end of the rod and connected therewith in such a way that when the barrel of the lock is turned by the insertion of'the key the rod 17 will alsobe turned to release the ratchet 16 and permit the binding mem bers to open.

Means are provided ing members to open automatically when they are released. The means I have provided for this purpose comprise a :plu-

for causing the hindone end of the same designed, when the rod has been. turned one-quarter of a revolution,

, to engage against the back plate C.

rality of telescoping binding posts 22 formed with two parts 23 and 24 separated by a strong spiral compression spring 25 mounted within the parts. The rod 17 is held in normally engaged position by means of a spiral spring 26 having one end bearing against the plate C and the other end connected to'the rod. Openin of the binding members is also assisted by means of a spring 27 mounted on the rod 17 and bearing at one end against the lug 20 whereby the spring will normally exert a pressure 'ainst the lugwhieh'is communicated by the plate D to the'binding bars Whielrwill tend to o pen'the same.

In addition to the usual binding posts 22 l )lOVlClQ a centralremovable bindin 'v )OSt ll e formed in "two telescopicseetiens 31 and normall' K so unrated b 1 an internal s iral V l r t spring 33, the ends 0% :WlllCl] post are adapt- "ed to seat in soekets '34 and 35in-the binding member whereby the llinding'liiost 30 may be readily removed on telescopingthe parts 31 and 32 together-and disengaging tl'ge'en'ds 't'rein the sockets, this-operation beingfrequently desirable in a binder of this typ where certain of the lnndmg posts will be engaged Wll'll open slots of the loose leaves of; the binder, hile other binding posts will. be engaged wlth closed perforations;

for instance,the binding post 30 were en-.

n'aged 'With a closed perforation While the remaining binding posts 'Were engaged wit-h open slots, it will be seen that the loose leaves might lie-readily remoredns soon as] the binding ,post 3O was removed. In operation it Wlll be seen that Whenever the lock E is turned the rod 17 will be 1 turned to release the ratchet and permit the binding members to spring apart byf the spring action already descr bed, both the l3i11tling bars being caused to more in unison by the arrangement olithe inclined slots 12.

Y'Vh'en it is desired to close the binder the binding bars are simply forced toward each other, the spring dog 17 running over the ratchet 16 to permit the Closing of the binder but not the opening'thereofland the binder cannot beopened untillt is unlocked.

As many ehanges'eould be made inthe above construction, and many apparently Widely dlfierent embodlments of my mvention,- frvithin. the V scope of theelaini con "etructed without departing from the spirit or scopethereol it is intended that all matter contained 1n the aeoompanymg speelfiration and drawings,- shall be interpreted as illustrative and no'tein a limiting sense.

What I claim as my i n ."e nti0n is: V V In a binder, and in combinatlom tWo binding elements, a back plate, a rod extendinglongitudinally on the bat-l; plate having freedom to turn a part of a revolutioin a oontrolling platel movable longitudinally v withrespect to the rod and Vbemg operatlvely ,WILLIAM .ronnfmeanrnr] lVitness: I a

Rossm, S.. SMART. 

